KR20170112377A - Ductless Air Cleaner - Google Patents

Ductless Air Cleaner Download PDF

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Publication number
KR20170112377A
KR20170112377A KR1020160039365A KR20160039365A KR20170112377A KR 20170112377 A KR20170112377 A KR 20170112377A KR 1020160039365 A KR1020160039365 A KR 1020160039365A KR 20160039365 A KR20160039365 A KR 20160039365A KR 20170112377 A KR20170112377 A KR 20170112377A
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volatile organic
air
electrode plate
organic compounds
purifying
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KR1020160039365A
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Korean (ko)
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KR101852144B1 (en
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백영옥
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주식회사 애리프
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Priority to PCT/KR2016/007838 priority patent/WO2017171151A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/66—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00—Preparation of ozone by electrical discharge
    • C01B2201/20—Electrodes used for obtaining electrical discharge
    • C01B2201/22—Constructional details of the electrodes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00—Preparation of ozone by electrical discharge
    • C01B2201/20—Electrodes used for obtaining electrical discharge
    • C01B2201/24—Composition of the electrodes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Inorganic Chemistry (AREA)
  • Epidemiology (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The present invention relates to a ductless air purifying apparatus for purifying and treating volatile organic compounds and fine dusts, comprising: a pretreatment filter (100) for sucking contaminated air through a suction fan (110) A low temperature plasma reactor (200) for decomposing volatile organic compounds contained in air passing through the filter (100) by using ozone generated by generating plasma at room temperature; A metal oxide catalyst chamber 300 for decomposing the contained ozone into reactive active species using a metal oxide catalyst and then decomposing the volatile organic compound using the reactive active species; (400) for adsorbing and removing contaminants or ozone in the air passing through the adsorption elimination filter (400) The exhaust fan (500); (10) for purifying and treating volatile organic compounds and fine dusts.

Description

{Ductless Air Cleaner} for purifying and treating volatile organic compounds and fine dusts

The present invention relates to a ductless air purifying apparatus for purifying and treating volatile organic compounds and fine dusts, comprising: a pretreatment filter (100) for sucking contaminated air through a suction fan (110) A low temperature plasma reactor (200) for decomposing volatile organic compounds contained in air passing through the filter (100) by using ozone generated by generating plasma at room temperature; A metal oxide catalyst chamber 300 for decomposing the contained ozone into reactive active species using a metal oxide catalyst and then decomposing the volatile organic compound using the reactive active species; (400) for adsorbing and removing contaminants or ozone in the air passing through the adsorption elimination filter (400) The exhaust fan (500); (10) for purifying and treating volatile organic compounds and fine dusts.

Volatile organic compounds are classified as specific air pollutants because they have a large impact on humans and ecosystems. Volatile organic compounds generate photochemical oxides that are secondary pollutants such as ozone through photochemical reactions. Volatile organic compounds are toxic to humans and cause problems such as ozone depletion, global warming, photochemical smog, and odor because they contain many chemicals known to be highly carcinogenic.

Typical techniques for removing volatile organic compounds include an adsorption method using activated carbon, a high-temperature incineration method, an oxidation removal method using a catalyst, and a plasma method.

The adsorption method by activated carbon is the most conventional method for removing volatile organic compounds, and is a technique for physically and chemically adsorbing volatile organic compounds to activated carbon to remove them. This method does not absorb any more after a certain period of time, so the exchange period is short. In addition, secondary pollutants are generated at the time of disposal after completion of use, which is disadvantageous for treatment of high concentration volatile organic compounds.

The high-temperature incineration method is a method of burning oxidation by heating at a high temperature. This method is effective for removing a high concentration of volatile organic compounds, but is disadvantageous for a low concentration. Also, since the auxiliary fuel is required, the processing cost is high.

The oxidation-removal method using a catalyst is a technique for oxidizing and removing volatile organic compounds using an oxidation catalyst. The lifetime of the catalyst is long, unlike the activated carbon, but there is a disadvantage that the temperature of the polluted air must be raised to a high temperature of about 300 ° C or more because there is almost no reaction activity at room temperature.

In order to solve the problems of the present invention, a method and apparatus for treating volatile organic compounds (Korean Patent Registration No. 10-1559021) of Patent Document 1 include a method for treating volatile organic compounds contained in the air, A primary decomposition step of generating ozone having a concentration of 10 to 15 times the concentration of the volatile organic compound contained in the volatile organic compound and decomposing the volatile organic compound primarily using the generated ozone; And a second decomposing step of decomposing the volatile organic compounds using the generated reactive species by treating the generated ozone with a catalyst to generate reactive species, and a method and an apparatus for treating volatile organic compounds, Lt; / RTI >

On the other hand, during SMT (Surface Mount Technology) line of industry, pollutants such as odor and volatile organic compounds (VOCs) are generated in the resin (Rosin) flux during reflow soldering operation at a high temperature of about 250 to 300 ° C However, nowadays, all these pollutants are exhausted to the air conditioner (duct) on the factory without any treatment.

In addition, some odor and volatile organic compounds (VOCs) leaks from the input and output parts of the reflow soldering equipment, polluting the air inside the factory, causing worker's headache, etc., .

At the present SMT plant, air conditioning facilities such as ducts are installed at the top of the reflow soldering equipment. In case of changing the production items or production process in the existing SMT line, the air conditioning system (duct re-installation, etc.) should be changed and changed from time to time. For example, when changing the type of mobile phone (Galaxy series, etc.) or the type of vehicle, the SMT line itself is changed by replacing the electric circuit board.

Therefore, when the production process is changed, productivity is lowered due to the shutdown of the duct due to the reinstallation of the duct. In addition, the economic loss due to the labor cost and the hassle and the installation cost due to the change of the air conditioning system such as the duct is considerable.

Korean Patent No. 10-1559021

The present invention solves the above-described problems of the prior art, and it is possible to exhaust air with controlled temperature after decomposing / removing odor or volatile organic compounds completely, so that it is possible to purify air without needing an air conditioning facility such as a duct It is possible to reduce the effort and cost required for installation of air conditioning facilities such as ducts and the like, and to purify and treat volatile organic compounds and fine dusts that can prevent productivity deterioration due to interruption of operation due to re- And a duct-less air purifying device for supplying the air to the duct.

In addition, by using a low-temperature plasma reaction, it is possible to prevent an unnecessary increase in temperature during the process. In addition, since ozone generated during plasma generation is completely decomposed through reaction with catalyst to generate a large amount of active oxygen, odor and volatile organic compounds It is an object of the present invention to provide a volatile organic compound capable of efficiently removing pollutants and a ductless air purifier for purifying and treating fine dust.

In order to achieve the above object, a ductless air cleaning apparatus for purifying and treating volatile organic compounds and fine dust according to the present invention comprises a pretreatment filter 100 for sucking contaminated air through a suction blower 110 and pre- A low temperature plasma reactor 200 for decomposing the volatile organic compounds contained in air passing through the pre-treatment filter 100 using ozone generated by generating plasma at room temperature, A metal oxide catalyst chamber 300 for decomposing ozone contained in the air passing through the metal oxide catalyst into a reactive active species and decomposing the volatile organic compound using the reactive active species; An adsorption elimination filter 400 for adsorbing and removing contaminants or ozone in the air that has passed through the catalyst chamber 300; Exhaust fan 500 for discharge in an interior; And a control unit.

The low-temperature plasma reactor 200 includes a booster 220 for boosting a voltage of a power source supplied from the power source 210, a first electrode plate 220 to which a power source boosted by the booster 220 is applied, The first electrode plate 230 and the second electrode plate 240 are sequentially arranged in an intersecting manner to form the first electrode plate 230 and the second electrode plate 240, So that air can flow through the space between the first and second electrodes.

In addition, any one of the power supply lines for supplying power to the first electrode plate 230 or the second electrode plate 240 in the booster 220 may be energized through a ground.

The first electrode plate 230 and the second electrode plate 240 are each formed by forming a coating insulating layer 233 on a metal electrode plate 231 attached on an insulating plate 232.

A metal mesh filter 310 installed between the low temperature plasma reactor 200 and the metal oxide catalyst chamber 300; and an anion for generating and supplying negative ions to the air passing through the adsorption elimination filter 400 A housing 700 in which the pretreatment filter 100 to the anion generator 600 are integrally mounted and the caster wheels 710 for movement are installed; And further comprising:

According to the present invention, since it is possible to exhaust air with controlled temperature after decomposing / removing the odor or volatile organic compounds completely, it is possible to purify the air without requiring an air conditioning facility such as a duct, It is possible to reduce the effort and cost required for installation of the duct, and to prevent the productivity from being lowered due to the interruption of the operation due to reinstallation of the duct when the production process is changed.

In addition, by using a low-temperature plasma reaction, it is possible to prevent an unnecessary increase in temperature during the process. In addition, since ozone generated during plasma generation is completely decomposed through reaction with catalyst to generate a large amount of active oxygen, odor and volatile organic compounds It has the advantage of being able to remove pollutants efficiently.

1 is a schematic view showing the entire construction of a ductless air cleaning apparatus for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention;
2 is a schematic diagram of a low-temperature plasma reactor of a ductless air purifier for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention;
3 is a cross-sectional view of an electrode plate of a low temperature plasma reactor of a ductless air purification apparatus for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention
4 is an internal perspective view of a ductless air purifier for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention.

Hereinafter, a ductless air cleaning apparatus for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

1, a ductless air purifier 10 for purifying and treating volatile organic compounds and fine dust according to the present invention comprises a pre-treatment filter 100, a low-temperature plasma reactor 200, A metal oxide catalyst chamber 300, an adsorption elimination filter 400 exhaust blower 500; And a control unit.

First, the preprocessing filter 100 will be described. 1, the pretreatment filter 100 sucks contaminated air containing volatile organic compounds generated in the SMT process, dyeing, ink manufacturing and plating processes, and laboratory and washing chambers through a suction blower 110 And then pre-filtering. That is, dusts of large size or the like are physically first collected to improve the efficiency of subsequent purification and decomposition steps. In this case, the pre-processing filter 100 may be implemented in various embodiments. In one embodiment, the pre-processing filter 100 may be a medium filter.

Next, the low temperature plasma reactor 200 will be described. As shown in FIG. 1, the low-temperature plasma reactor 200 decomposes volatile organic compounds contained in air that has passed through the pretreatment filter 100 using ozone generated by generating plasma at room temperature.

2, the low-temperature plasma reactor 200 includes a booster 220 for boosting a voltage of a power source supplied from a power source 210, and a power source for boosting the voltage of the booster 220 The first electrode plate 230 and the second electrode plate 240 to which the first electrode plate 230 and the second electrode plate 240 are applied. The first electrode plate 230 and the second electrode plate 240 are sequentially arranged in an intersecting manner as shown in FIG. 2 to allow air to flow into the space between the first electrode plate 230 and the second electrode plate 240 . In this case, it is preferable that the first electrode plate 230 and the second electrode plate 240 are generally arranged in a three-to-ten crossing arrangement. On the other hand, it is preferable that the boosting device 220 is boosted to a high voltage in the range of 10 to 20 kV.

Oxygen molecules in the air are dissociated into oxygen atoms having strong activity or converted into ozone by the low-temperature plasma reactor 200 having the above-described structure and function, and the volatile organic substances contained in the contaminated air are decomposed strongly and effectively .

Meanwhile, in order to prevent corrosion or damage due to deposition of contaminants or sparks on the electrodes that may occur during operation and to facilitate maintenance / repair, the first and second electrode plates 230 and 240 , It is preferable that the coating insulating layer 233 is formed on the metal electrode plate 231 attached on the insulating plate 232 as shown in FIG. In this case, the insulating plate 232 is preferably made of tempered glass or a ceramic plate, and the coating insulating layer 233 is preferably made of an epoxy resin.

The power supplied from the booster 220 to the first electrode plate 230 and the second electrode plate 240 is a high voltage in the range of 10 to 20 kV as described above. Therefore, when the power supply lines for supplying power to the first electrode plate 230 or the second electrode plate 240 are installed close to each other in the booster 220, sparks are generated and the power lines are damaged The risk of short circuit is extremely high. Therefore, in order to prevent this, any one of power supply lines for supplying power to the first electrode plate 230 or the second electrode plate 240 in the booster 220 may be energized through a ground, . With this configuration, only one high-voltage power line can be used, and spark generation can be prevented in advance.

Next, the metal oxide catalyst chamber 300 will be described. As shown in FIG. 2, the metal oxide catalyst chamber 300 decomposes ozone contained in air passing through the low-temperature plasma reactor 200 into reactive active species using a metal oxide catalyst, To decompose the volatile organic compound.

In this case, examples of the catalyst for decomposing ozone include platinum, Cr oxide, Al oxide, Co oxide, Cu oxide, Mn oxide, metal Pd or Pd compound, among which metal oxides are preferably used. Examples of such metal oxide catalysts include MnO 2 , NiO, CoO, Fe 2 O 3 , V 2 O 5 , and AgO 2 . In addition, a mixture of various metal oxides as well as a single metal oxide may be used. For example, MnO 2 -CuO, MnO 2 -AgO 2 , NiO-CoO-AgO 2, or the like.

The reactive species include various active species used in the decomposition of ozone. Examples include O ( 1 D), O ( 3 P), OH * active species.

Meanwhile, the metal oxide catalyst chamber 300 may be formed by processing the metal oxide catalyst into a mesh shape in order to increase the contact area between the metal oxide catalyst and air passing therethrough. Alternatively, the metal oxide catalyst may be impregnated with a porous material (for example, a porous ceramic) formed in a shape in which a cavity communicates with the metal oxide catalyst so that the porous material through which the air passes And the metal oxide catalyst is coated on the surface of the cavity.

In the metal oxide catalyst chamber 300, as shown in the following chemical formula 1, the reaction for decomposing the residual ozone (ozone) left unused by the decomposition reaction in the ozone generated in the low-temperature plasma reactor 200 in the previous stage It happens together. In this case, a manganese oxide catalyst is used as an example.

[Chemical Formula 1]

MO 2 + O 3 - > MO 2 + O * + O 2

Therefore, the metal oxide catalyst chamber 300 further decomposes the remaining volatile organic compounds that have not been decomposed and decomposed in the low-temperature plasma reactor 200 in the previous stage to remove them completely and close to perfection, And a function of extremely reducing the concentration of ozone in the discharged air.

At this time, it is preferable that the volume of the metal oxide catalyst (the amount of the metal oxide catalyst used) is set so that the space velocity is between 10,000 and 20,000 (hr -1 ) with respect to the process air flow rate (flow rate). In this case, the space velocity can be defined according to the following equation (1).

Figure pat00001

1, a metal mesh filter 310 may be installed between the low-temperature plasma reactor 200 and the metal oxide catalyst chamber 300 to remove harmful gas such as ozone or unreacted volatile organic compounds The metal oxide catalyst chamber 300 may be uniformly brought into contact with the metal oxide catalyst chamber 300 to enhance the reaction efficiency.

Next, the adsorption elimination filter 400 will be described. 1, the adsorption elimination filter 400 adsorbs and removes contaminants, ozone in the air passing through the metal oxide catalyst chamber 300, or carbon monoxide generated as a by-product in the decomposition process of the volatile organic compound .

In this case, the adsorption elimination filter 400 may include an activated carbon filter 410.

The adsorption elimination filter 400 may further include a HEPA filter 420. The HEPA filter 420 may remove 99.97% or more of fine particles having a size of 0.3 μm or more, Discharge it indoors

The air having passed through the adsorption elimination filter 400 is discharged through a discharge blower 500 for discharging the air having passed through the adsorption elimination filter 400 to the room.

It is preferable that the anion generator 600 further includes an anion generator 600 for generating and supplying negative ions to the air passing through the adsorption elimination filter 400. It is preferable that the negative ion generator 600 emits air containing 2000 to 10,000 / cm3 of negative ions.

The ductless air cleaning apparatus 10 for purifying and treating volatile organic compounds and fine dust according to an embodiment of the present invention has the characteristic that piping such as a separate duct is not required. Therefore, the ductless air purifying apparatus 10 for purifying and treating the volatile organic compounds and the fine dust according to the embodiment of the present invention can be installed and used easily, In addition, it is preferable that the housing 700 further includes a caster wheel 710 for moving the pre-processing filter 100 to the anion generator 600, .

<Examples>

In this embodiment, a performance test was conducted at the indoor environment analysis center of Seoul National University to evaluate the removal efficiency of volatile organic compounds and the ozone concentration.

Applied from the low-temperature plasma reactor 200 by the voltage was 15KV, airflow 4m 3 / min and the space velocity was 17,000hr - was subjected to decomposition removal performance test of the volatile organic compound to one.

The total volatile organic compound (VOC) removal efficiency is as follows. That is, the total VOC concentration at the inlet portion of the ductless air cleaning apparatus 10 is about 77931.3 g / m 3, while at the outlet through the ductless air cleaning apparatus 10, the total volatile organic compound (Total VOC) VOC) concentration was significantly reduced to about 205.6 / / ㎥, indicating a high removal efficiency of 99.7%. In particular, the concentration of total VOC (205.6 μg / ㎥) at the outlet is only about half that of the indoor standard (500 μg / ㎥).

The benzene concentration of toluene was 18.6 ㎍ / ㎥, the concentration of ethylbenzene was 10.7 ㎍ / ㎥, the concentration of xylene was 13.3 ㎍ / ㎥, the concentration of styrene was 0.8 ㎍ / (Benzene, toluene, ethylbenzene, xylene, styrene) are also effectively removed, which is much smaller than the indoor standard value.

Measuring position Measurement item (㎍ / ㎥) T.VOC benzene toluene Ethylbenzene Xylene Styrene Suction portion 77931.3 - 526.4 305.5 353.3 25.4 The discharge portion 205.6 - 18.6 10.7 13.3 0.8

(Standard for maintaining indoor air quality in multi-use facilities)

Total VOC Indoor reference value: 500μg / ㎥ or less Toluene Indoor reference value: 1,000μg / ㎥ or less, Benzene Indoor reference value: 30μg / ㎥ or less

       Ethylbenzene Indoor standard value: 360 / / ㎥ or less, xylene indoor standard value: 700 / / ㎥ or less

The initial ozone concentration in the low temperature plasma reactor 200 of the ductless air purifier 10 and the oxygen concentration in the metal oxide catalyst chamber 300 of the ductless air purifier are calculated as the ozone concentration (ozone removal efficiency) After the roughness, the concentration of ozone (ozone) was measured.

At this time, the ductless type in the low-temperature plasma reactor 200 of the air purifier applied voltage was to 15KV, the air volume is 4m 3 / min and the space velocity was 17,000hr - 1 was determined by the concentration of ozone.

The initial ozone concentration in the low-temperature plasma reactor 200 is about 40 ppm, while in the metal oxide catalyst chamber 300, after decomposition of the volatile organic compounds after the reaction, the ozone concentration in the finally discharged air is about 0.015 ppm, indicating 99.96% ozone removal efficiency, which is within the tolerance limits of Korea and USA ozone concentration. (Korea ozone concentration limit: 1 hour average 0.1ppm, 8 hour average 0.06ppm / US ozone concentration allowance: 8 hours or 40 hours 0.1ppm, 15 minutes 0.3ppm)

Optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Ductless air purification system for purifying and treating volatile organic compounds and fine dust
100: Pretreatment filter
110: Suction blower
200: low temperature plasma reactor
210: Power supply unit 220:
230: first pole plate
231: metal electrode plate 232: insulating plate
233: Coated insulating layer
240: Second pole plate
300: metal oxide catalyst chamber
310: metal mesh filter
400: adsorption elimination filter
410: activated carbon filter
420: Hepa filter
500: exhaust blower
600: Negative ion generator
700: Housing
710: Caster wheel

Claims (5)

A pretreatment filter (100) for sucking polluted air through a suction fan (110) and pre-filtering the polluted air;
A low temperature plasma reactor (200) for decomposing volatile organic compounds contained in air passing through the pretreatment filter (100) by using ozone generated by generating plasma at room temperature;
The ozone contained in the air passed through the low temperature plasma reactor 200 is decomposed into reactive active species using a metal oxide catalyst and then decomposed into a volatile organic compound using the reactive active species 300 );
An adsorption elimination filter 400 for adsorbing and removing contaminants or ozone in air passing through the metal oxide catalyst chamber 300;
A discharge blower 500 for discharging the air having passed through the adsorption elimination filter 400 to the room; (10) for purifying and treating volatile organic compounds and fine dusts, characterized in that the volatile organic compound and fine dust are purified and treated. The method according to claim 1,
The low-temperature plasma reactor (200)
A boosting device 220 for boosting the voltage of the power supplied from the power supply unit 210;
And a first electrode plate 230 and a second electrode plate 240 to which a power source boosted by the voltage booster 220 is applied,
The first electrode plate 230 and the second electrode plate 240 are sequentially arranged in an alternating manner so that air can flow through the space between the first electrode plate 230 and the second electrode plate 240 A ductless air purification device (10) for purifying and treating volatile organic compounds and fine dust. The method according to claim 2,
Wherein any one of the power lines for supplying power to the first electrode plate (230) or the second electrode plate (240) in the booster (220) is energized through a ground, (10) for purifying and treating air. The method of claim 3,
Wherein the first electrode plate 230 and the second electrode plate 240 are formed by forming a coating insulating layer 233 on the metal electrode plate 231 attached on the insulating plate 232, And a ductless air purification device (10) for purifying and treating fine dust. The method according to any one of claims 1 to 4,
A metal mesh filter (310) installed between the low temperature plasma reactor (200) and the metal oxide catalyst chamber (300);
An anion generator 600 for generating and supplying negative ions to the air passing through the adsorption elimination filter 400;
A housing 700 in which the pretreatment filter 100 to the anion generator 600 are integrally formed and installed with caster wheels 710 for movement; (10) for purifying and treating volatile organic compounds and fine dust, characterized by further comprising:
KR1020160039365A 2016-03-31 2016-03-31 Ductless Air Cleaner KR101852144B1 (en)

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KR1020160039365A KR101852144B1 (en) 2016-03-31 2016-03-31 Ductless Air Cleaner
PCT/KR2016/007838 WO2017171151A1 (en) 2016-03-31 2016-07-19 Ductless air purification apparatus for purifying and treating volatile organic compounds and fine dusts

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KR101852144B1 KR101852144B1 (en) 2018-04-25

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